Results for “head”
Small, practical examples. Search by task or narrow things down below.
Keep rows matching a condition
SQL: Use WHERE to select rows with a particular category.
SQL✓ Tested
Keep rows matching a condition
SQL Server: Use WHERE to select rows with a particular category.
SQL Server✓ Tested
Keep rows matching a condition
Postgres: Use WHERE to select rows with a particular category.
Postgres✓ Tested
Keep rows matching a condition
SQLite: Use WHERE to select rows with a particular category.
SQLite✓ Tested
Keep unmatched rows with LEFT JOIN
Show every product even when stock is missing.
LEFT JOIN✓ Tested
Label a data table
Use a caption and scoped headers for an HTML data table.
HTML✓ Tested
Label rows with CASE
Derive a readable label from a condition.
CASE✓ Tested
List branches already merged into the current branch
Git: The merged filter reports branches whose tips are reachable from HEAD.
Git✓ Tested
List distinct values
Remove duplicate category values from a result.
DISTINCT✓ Tested
List only staged filenames
Git: The cached diff compares the index with HEAD rather than comparing working files with the index.
Git✓ Tested
List unordered pairs without duplicate reversals
SQL: Join using an increasing key comparison to omit self-pairs and reversed duplicates.
SQL✓ Tested
List unordered pairs without duplicate reversals
SQL Server: Join using an increasing key comparison to omit self-pairs and reversed duplicates.
SQL Server✓ Tested